/**********************************************************************************/
/*  Problem: a002 "簡易加法"                                                  */
/*  Language: JAVA                                                                */
/*  Result: AC (110ms, 5628KB) on ZeroJudge                                       */
/*  Author: culiuy at 2010-09-21 14:21:25                                         */
/**********************************************************************************/


package tw.zerojudge;

import java.util.Scanner;

public class a002 {


	public static void main(String[] args) {

		Scanner cin = new Scanner(System.in);
		while (cin.hasNext()) {
			int  sum = 0;
			for  (int  i=0 ;i<2 ;i++){
				sum+=cin.nextInt();
			}			
			System.out.println(sum);	
		}
	}

}